US9010103B2 - Device for driving working equipment of a commercial vehicle - Google Patents

Device for driving working equipment of a commercial vehicle Download PDF

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Publication number
US9010103B2
US9010103B2 US13/316,761 US201113316761A US9010103B2 US 9010103 B2 US9010103 B2 US 9010103B2 US 201113316761 A US201113316761 A US 201113316761A US 9010103 B2 US9010103 B2 US 9010103B2
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drive
combustion engine
power branch
mechanical
generator
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US13/316,761
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US20120151903A1 (en
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Manuel Gotz
Olrik Weinmann
Mark Mohr
Martin Fellmann
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Assigned to ZF FRIEDRICHSHAFEN AG reassignment ZF FRIEDRICHSHAFEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FELLMANN, Martin, GOTZ, MANUEL, MOHR, MARK, WEINMANN, OLRIK
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type

Definitions

  • the invention concerns a device for driving working equipment of an agricultural commercial vehicle.
  • Agricultural commercial vehicles or tractors can be equipped with a multitude of different working or planting equipment which are used for different agricultural working functions.
  • the working equipment is generally driven either mechanically or hydraulically, for instance by means of a so-called power take-off shaft, which is driven by the combustion engine of the tractor.
  • Disadvantageous is the dependence of the power take-off shaft rotational speed in relationship to the rotational speed of the motor which does not match the respective optimum rotational speed of the different working equipment.
  • the electric power which is applied to the electric motor can be adjusted through the transmission device, thus, the drive rotational speed of the electric motors are independent of the rotational speed of the combustion engine.
  • the total drive power for the planting device is induced as by electrical power which creates a decrease of the efficiency, meaning an increased gasoline consumption of the combustion engine of the tractor.
  • the hydraulic pumps, positioned in the commercial vehicle or with the working equipment, and/or the mechanical connection, either electrically and/or mechanically can be driven with a controllable rotational speed by means of power branching.
  • the advantage hereby is that high efficiency is achieved through the partial mechanical drive and control of the rotational speed through the electrical drive, due to the power branching.
  • the power branching comprises of a mechanical power branch, beginning with the combustion power engine, and an electrical power branch, beginning with the generator, whereby the mechanical and the electrical power branch are combined in a planetary transmission. It is possible by means of the planetary transmission to achieve rotational speed control at the output shaft of the planetary transmission which drives the hydraulic pumps and/or the mechanical connection for the working equipment.
  • the electrical power branch comprises at least an electric motor which drives the planetary transmission.
  • the electric motor receives its electric drive energy from the generator, while the mechanical power branch receives its drive energy from the combustion engine.
  • the electric power branch has lower power than the mechanical power branch. This results in the advantage of a higher total efficiency for the drive of the working equipment.
  • control of the rotational speed takes place through the control of the electric power branch, meaning the mechanical power which is induced into the planetary transmission by the electric motor. Since there is only a small portion of the total power needed for the adjustment of the output rotational speed of the planetary transmission, this control results in advantages.
  • the hydraulic pump for the hydraulic pumps are driven by the planetary transmission.
  • the drive of the mechanic connection takes place through the mechanical power branch.
  • the mechanical connection is driven through the planetary transmission, whereby it results in the advantage of the rotational speed control for the drive of the working equipment, and also, on the other hand, results in a relatively high efficiency because of the mechanical power branch.
  • the hydraulic pumps as well as the mechanical connection can be driven by one or two planetary transmissions.
  • the advantage is that the drive rotational speed of both users can be controlled.
  • the generator is designed as an electric machine which can be driven as a generator as well as a motor.
  • the advantage hereby is the recuperation of the braking energy of the commercial vehicle.
  • an energy storage device is assigned to the electric machine in which the recuperated braking energy can be stored and used during the drive of the working equipment through the electric power branch, in favor of the combustion engine.
  • combustion power engine and the electric machine in the drive train of the commercial vehicle are positioned in the art of a serial, parallel, or power branching hybrid system.
  • the invented drive device can therefore be combined with the known designs of hybrid systems.
  • FIG. 1 an invented device to drive the working equipment with power branching
  • FIG. 2 a second embodiment example of the invention
  • FIG. 3 a third embodiment example of the invention
  • FIG. 4 a fourth embodiment example of the invention
  • FIG. 5 a fifth embodiment example of the invention
  • FIG. 6 a sixth embodiment example of the invention
  • FIG. 7 a seventh embodiment example of the invention
  • FIG. 8 an eighth embodiment example of the invention
  • FIG. 9 an alternative design of an electric machine in the drive train as a serial hybrid
  • FIG. 10 an additional, alternative design of the electric machine in the drive train as a power branching hybrid.
  • FIG. 1 shows a device 1 for the drive of a working equipment 2 of an agricultural commercial vehicle, not shown here, called a tractor in the following.
  • the working equipment 2 can be coupled, not shown here, to the tractor and can be exchanged, as required with other working equipment which performs different agricultural working functions.
  • the working equipment 2 comprises one or more a hydraulic working circuits, for instance, for actuating lift equipment and for the working equipment itself.
  • the tractor can include a hydraulic circuit for providing the lubrication and system pressure to the transmission and the rear axle of the tractor.
  • a hydraulic circuit is, in the example, marked with the reference number 3 .
  • the working equipment also comprises of a mechanical connection 4 , for instance designed as a clutch for a mechanical drive of the working equipment 2 , whereby the drive takes place preferably through a power take-off shaft of the tractor, not shown here.
  • the hydraulic circuit 3 is supplied through its own hydraulic pump 5 .
  • the tractor has a drive machine which is designed as an internal combustion engine 6 , in the following also called combustion engine 6 , and is presented schematically.
  • the combustion engine 6 is mechanically connected through a drive train 7 with the transmission 8 , through which the wheels of the tractor are driven.
  • a generator 9 is positioned in the drive train 7 between the combustion engine 6 and the transmission 8 for the generation of electrical energy and which supplies an electric motor 10 with electric energy via the electric power branch 11 .
  • a mechanical power branch 12 branches off from the drive train 7 and splits into two parallel power branches 12 a and 12 b , whereby the mechanical power branch 12 a drives the working equipment 2 mechanically through the connection 4 , and the power branch 12 b drives a planetary transmission 13 .
  • the planetary gear 13 is driven through a mechanical power branch 11 a , which is the output shaft of the electric motor 10 .
  • the output shaft of the planetary gear 13 is marked as a mechanical power branch 12 c which drives the hydraulic pump 5 for the supply of the hydraulic circuit 3 .
  • the transferred power in the electric power branch 11 is preferably smaller than the power which is transferred in the mechanical power branch 12 b , so that the amount of mechanical drive power for the pump 5 is larger than the amount of the electric power.
  • the result hereby is a better drive efficiency for the pump 5 and thus relief for the combustion engine 6 .
  • Rotational speed control of the output shaft 12 c of the planetary transmission 13 , or the drive rotational speed of the pump 5 , respectively, is possible through the planetary transmission 13 .
  • the electric power which flows through the electric power branch 11 , is controlled and which is brought to the electric motor 10 .
  • the drive rotational speed of the pump 5 can be matched with the rotational speed requirement of the hydraulic circuit 3 —or other different circuits.
  • the generator 9 can also be designed as an electric machine, which can be used as a generator as well as a motor.
  • an optional electric (shown as dashed line) energy storage device 14 is provided.
  • the energy storage device 14 can absorb, via the transmission 8 and the drive train 7 , induced brake energy and can store it. If required, the stored electric energy is passed on to the electric motor 10 .
  • the presented drive configuration for the working equipment 2 via an electric power branch 11 and via a mechanical power branch 12 , corresponds with a parallel hybrid system.
  • FIG. 2 shows a second embodiment of the invention with the modified drive configuration for the working equipment 2 (the same reference numbers as in FIG. 1 are used for same parts).
  • the rotational speed control drive attaches to a mechanical connection 4 of the working equipment 2
  • the drive for the pump 5 is a pure mechanical one and not controlled.
  • the mechanical power branch 12 leads through the branch 12 a directly to the pump 5 .
  • a branch 12 b drives into the planetary transmission 13 , which is simultaneously mechanically driven by the electric motor 10 .
  • the electric motor 10 is supplied with energy through the electric power branch 11 by the generator 9 .
  • the branching of the power through the mechanical power branch 12 , 12 b , and the electric power branch 11 corresponds with the embodiment example in accordance with FIG. 1 but with the difference that the mechanical connection 4 of the working equipment 2 is driven with rotational speed control, while the drive of the pump 5 is dependent on the rotational speed of the combustion engine 6 .
  • FIG. 3 shows a third embodiment example of the invention, whereby the same reference numbers are used for the same parts.
  • the embodiment example in accordance with FIG. 3 shows practically an overlay of the embodiment example in accordance with FIG. 1 and FIG. 2 , in which the pump 5 as well as the mechanical connection 4 are driven with rotational speed control, each through power branching.
  • the electric power branch 11 supplies the two electric motors 10 with electric power and the mechanical power branch 12 drives the two planetary transmissions 13 .
  • it shows therefore double parallel power branching and thus a double rotational speed control, on one hand for the pump 5 and on the other hand for the mechanical connection 4 .
  • FIG. 4 shows a fourth embodiment example of the invention with a single power branch: an electric power branch 11 , starting from the generator 9 , supplies the electric motor 10 with the electric energy, which by itself mechanically drives the planetary transmission 13 .
  • the latter on the other hand, is driven through the mechanical power branch 12 .
  • the mechanical power branch splits into a power branch 12 a to drive the mechanical connection 4 and into a power branch 12 b to drive the hydraulic pump 5 .
  • both users of the working equipment 2 are driven with rotational speed control, the drive of both users, however, takes place at the same rotational speed. This can be in certain cases sufficient but is based on the design of the working equipment 2 .
  • FIG. 5 shows a fifth embodiment example of the invention with a single power branch for the mechanical connection 4 of the working equipment 2 .
  • An electric power branch 11 supplies the first electric motor 10 and a second electric motor 10 with electric energy, whereby the first electric motor 10 drives the planetary transmission 13 and the second electric motor 10 drives the pump 5 .
  • a mechanical power branch 12 drives the planetary transmission 13 which is connected at the output through the mechanical power branch 12 a with the mechanical connection 4 .
  • Rotational speed control takes place at the mechanical connection 4 through the planetary transmission 13 , whereby the power of the electric power branch 11 is controllable. Simultaneously, the power of the second electric motor 10 to the drive the pump 5 is controllable.
  • FIG. 6 shows a sixth embodiment example of the invention.
  • the drive device in accordance with FIG. 6 corresponds with the drive system in accordance with FIG. 5 , with the difference being that an interface 15 in FIG. 6 , designed as a plug in connection, is provided with the electric power branch 11 .
  • the electric motor 10 and the pump 5 are located in the working equipment 2 .
  • FIG. 7 shows a seventh embodiment example of the invention with a power branching, rotational speed controlled drive of the hydraulic pump 5 and an electric, rotational speed controlled drive for the mechanical connection 4 of the working equipment 2 .
  • the planetary transmission 13 which drives the hydraulic pump 5 , is driven on one hand through the electric power branch 11 and the first electric motor 10 , and on the other hand through the mechanical power branch 12 .
  • the mechanical connection 4 is directly electrically driven through the second electromotor 10 , whereby both electric motors 10 are supplied by the electric power branch 11 .
  • Rotational speed control can take place through both electric motors 10 .
  • the pump 5 is mainly driven mechanically through the power branch 12 , the mechanical connection 4 , however, is driven fully electrically, meaning serially.
  • FIG. 8 shows an eighth embodiment example of the invention which corresponds with the embodiment example in accordance with FIG. 7 , with the difference that an interface 15 , designed as a plug in connection, is provided and that the electric motor 10 for the mechanical connection 4 is positioned in the working equipment 2 .
  • FIG. 9 shows an alternative configuration of a generator 9 a and an electric motor 9 b between the combustion engine 6 and the transmission 8 .
  • the generator 9 a is mechanically driven by the combustion engine 6 and supplies the electric motor 9 b with the electric power, which mechanically drives the transmission 8 .
  • the combustion engine 6 and the transmission 8 are thus mechanically not connected with each other.
  • This drive configuration corresponds with a serial hybrid system. All of the above mentioned embodiment examples can also be combined with such a serial drive system.
  • FIG. 10 shows an additional alternative for positioning of the generator 9 a and the electric motor 9 b in the drive train, between the combustion engine 6 and the transmission 8 : a planetary transmission 16 , mechanically driven by the combustion engine 6 through the drive train 7 , branches the drive power through a first branch 7 a towards the generator 9 a and through a second branch 7 b towards the transmission 8 .
  • the generator 9 a therefore receives only a portion of the mechanical power provided by the combustion engine 6 , the other portion flows towards the transmission 8 .
  • This power branching drive train 7 , 7 a , 7 b can also be combined with the above mentioned embodiment examples.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Zoology (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
US13/316,761 2010-12-20 2011-12-12 Device for driving working equipment of a commercial vehicle Active 2034-02-03 US9010103B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010063568 2010-12-20
DE102010063568.5 2010-12-20
DE102010063568.5A DE102010063568B4 (de) 2010-12-20 2010-12-20 Vorrichtung zum Antrieb von Arbeitsgeräten eines Nutzfahrzeuges

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US20120151903A1 US20120151903A1 (en) 2012-06-21
US9010103B2 true US9010103B2 (en) 2015-04-21

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140083375A1 (en) * 2012-09-26 2014-03-27 Makita Corporation Power tool
DE102015209245A1 (de) * 2015-05-20 2016-11-24 Avl Commercial Driveline & Tractor Engineering Gmbh Verfahren zum Betrieb eines Fahrzeuggespanns, Fahrzeuggespann, Zugfahrzeug und Arbeitsgerät
DE102016222792A1 (de) * 2016-11-18 2018-05-24 Zf Friedrichshafen Ag Leistungsverzweigter Antriebsstrang für eine Arbeitsmaschine

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE19710082A1 (de) 1997-03-12 1998-10-01 Deere & Co Antriebssystem für Nutzfahrzeuge
US7008342B2 (en) * 2003-08-15 2006-03-07 Silvatech Global Systems Ltd. Electro-mechanical continuously variable transmission
EP1683407A1 (de) 2005-01-21 2006-07-26 Deere & Company Antriebsanordnung einer landwirtschaftlichen Arbeitsmaschine
EP1995108A1 (de) 2007-05-24 2008-11-26 Deere & Company Vorrichtung zur elektrischen Versorgung eines landwirtschaftlichen Arbeitsfahrzeugs und/oder eines an das Arbeitsfahrzeug ankoppelbaren Anbaugeräts
WO2010130284A1 (en) * 2009-05-12 2010-11-18 El-Forest Ab Energy system for a hybrid vehicle

Patent Citations (8)

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Publication number Priority date Publication date Assignee Title
DE19710082A1 (de) 1997-03-12 1998-10-01 Deere & Co Antriebssystem für Nutzfahrzeuge
US6038500A (en) 1997-03-12 2000-03-14 Deere & Company Computer/bus message system for vehicle drive control system
US7008342B2 (en) * 2003-08-15 2006-03-07 Silvatech Global Systems Ltd. Electro-mechanical continuously variable transmission
EP1683407A1 (de) 2005-01-21 2006-07-26 Deere & Company Antriebsanordnung einer landwirtschaftlichen Arbeitsmaschine
US20060191359A1 (en) 2005-01-21 2006-08-31 Nicolai Tarasinski Agricultural machine with PTO torque limiting feature
EP1995108A1 (de) 2007-05-24 2008-11-26 Deere & Company Vorrichtung zur elektrischen Versorgung eines landwirtschaftlichen Arbeitsfahrzeugs und/oder eines an das Arbeitsfahrzeug ankoppelbaren Anbaugeräts
US20100308559A1 (en) 2007-05-24 2010-12-09 Nicolai Tarasinski Electric System For Providing Electrical Power For A Vehicle And An Implement
WO2010130284A1 (en) * 2009-05-12 2010-11-18 El-Forest Ab Energy system for a hybrid vehicle

Non-Patent Citations (1)

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Title
German Search Report dated Feb. 24, 2012. pp. 6.

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DE102010063568B4 (de) 2023-10-05
US20120151903A1 (en) 2012-06-21
DE102010063568A1 (de) 2012-06-21

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